What size power bank do i need? [Explained]

Now, you might be wondering, “What size power bank do I need?” It’s a natural question to ask, given the overwhelming variety of power banks available on the market. With so many options in terms of capacity, form factors, and features, finding the perfect power bank for your needs can feel like a daunting task.

The size of power bank you need depends on your needs. If you only need to charge your phone once or twice, a small power bank with 5,000mAh or 10,000mAh capacity will be sufficient. If you need to charge your phone multiple times or also charge other devices, such as a tablet or laptop, you will need a larger power bank with 20,000mAh or more capacity.

However, in this comprehensive guide, we’ll explore all the essential factors that will help you determine precisely what size power bank you need to meet your charging requirements efficiently.

What size power bank do i need?

The size of power bank you need depends on the devices you want to charge, how often you need to charge them, and how long you need them to last. Here are some factors to consider when choosing a power bank size:

• The battery capacity of your devices. The higher the battery capacity of your devices, the larger the power bank you will need to fully charge them. For example, a 10,000 mAh power bank will be enough to fully charge a smartphone with a 3,000 mAh battery, but it will not be enough to fully charge a tablet with a 10,000 mAh battery.
• How often you need to charge your devices. If you only need to charge your devices once a day, you can get away with a smaller power bank. However, if you need to charge your devices multiple times a day, you will need a larger power bank.
• How long you need your power bank to last. If you are going on a long trip, you will need a larger power bank than if you are just going to be out for the day.

Best Power Bank Size for Phone Charging

The best power bank size for phone charging depends on your specific needs and usage patterns. Power banks come in various capacities, measured in milliampere-hours (mAh) or watt-hours (Wh). The higher the capacity, the more charge it can hold and deliver to your phone.

Here are some common power bank sizes and their typical use cases:

1. Small and Portable (2,000mAh – 5,000mAh): These power banks are compact and lightweight, suitable for emergency or occasional use. They can provide around 1 full charge for most smartphones. Ideal for those who want a small backup option to fit in a pocket or purse.
2. Medium Capacity (5,000mAh – 10,000mAh): These power banks are more versatile and can provide 1.5 to 3 full charges for most smartphones. They strike a balance between portability and capacity and are suitable for moderate phone users who need backup power throughout the day.
3. High Capacity (10,000mAh – 20,000mAh): These power banks are bulkier but offer more charging capacity. They can provide 3 to 5 full charges for most smartphones and are suitable for heavy phone users, travelers, or situations where access to power outlets is limited.
4. Ultra-High Capacity (20,000mAh+): These power banks are bulkier and are typically suitable for users with multiple devices or those who require extended periods of power backup without access to a power source.

Keep in mind that power banks have some energy loss during the charging process, so you may not get a full 100% charge on your phone for the entire capacity of the power bank.

Also, the actual number of charges a power bank provides can vary based on factors like the phone’s battery size and efficiency, the power bank’s efficiency, and the charging cables used.

Recommended Power Bank Capacity for Laptops

When it comes to power banks for laptops, you’ll need a higher capacity compared to those used for smartphones, as laptops require much more power to charge. The exact capacity you need will depend on your laptop’s battery size and power consumption, as well as how you intend to use the power bank.

Here are some general guidelines:

1. Check your laptop’s battery capacity: Look up your laptop’s battery capacity, usually expressed in watt-hours (Wh) or milliampere-hours (mAh). This information is often available in the laptop’s user manual or on the manufacturer’s website.
2. Choose a power bank with higher capacity: Ideally, you’ll want a power bank with a capacity equal to or greater than your laptop’s battery capacity. If your laptop has a 50Wh battery, for example, a power bank with 50Wh or higher would be suitable.
3. Consider your usage and needs: If you use your laptop for extended periods away from a power source or perform power-intensive tasks (e.g., gaming, video editing), consider getting a power bank with a capacity significantly higher than your laptop’s battery capacity. This will ensure you get several charges from the power bank before needing to recharge it.
4. Output voltage and compatibility: Ensure the power bank’s output voltage and connectors are compatible with your laptop. Some laptops require specific voltages and connectors for charging, so double-check that the power bank can provide the correct output.
5. Portability: Higher capacity power banks tend to be bulkier and heavier. Consider your portability needs and balance them with the charging capacity. If you prioritize portability, you may opt for a lower capacity power bank and use it for emergency charging rather than full laptop recharges.
6. Quality and safety: Invest in a reputable brand and quality power bank to ensure safety and efficiency during charging. Poorly made power banks might not deliver the claimed capacity or could damage your laptop.

As a rough estimate, for most mid-range laptops, a power bank with a capacity of 20,000mAh (approximately 70-80Wh) should provide at least one full charge for the laptop, while a 30,000mAh (approximately 100-110Wh) power bank should offer even more charging cycles.

Top Power Bank Sizes for Camping

When it comes to camping, having a reliable power bank is essential to keep your electronic devices charged and functional. The ideal power bank size for camping will depend on your specific needs and the number of devices you plan to charge.

Here are some top power bank sizes for camping:

1. 10,000mAh: A 10,000mAh power bank is a popular choice for camping because it strikes a good balance between portability and capacity. It can typically charge most smartphones 2-4 times, which should be sufficient for a weekend camping trip.
2. 20,000mAh: If you require more charging capacity or plan to charge multiple devices, a 20,000mAh power bank is a great option. It can charge smartphones around 4-6 times and can also charge tablets or other small electronic devices.
3. 30,000mAh: For longer camping trips or if you have power-hungry devices like laptops or cameras, a 30,000mAh power bank provides even more charging capacity. It can charge smartphones 6-8 times and can power larger devices for extended periods.
4. Solar Power Banks: If you’ll be camping in areas with abundant sunlight, consider a solar power bank. These power banks come in various sizes, and their capacity can range from 5,000mAh to 30,000mAh or more. Keep in mind that solar charging may not be as efficient as charging from a wall outlet, so it’s wise to charge the power bank fully before your trip.

Remember that power banks’ size and capacity may also affect their weight and dimensions, so consider the portability aspect along with your power needs. Additionally, check for power banks with multiple output ports, fast-charging capabilities, and built-in safety features.

Ultimately, the best power bank size for camping depends on your individual requirements and the duration of your camping trips. It’s always a good idea to assess your power needs, the number of devices you’ll be charging, and the availability of charging options while camping before making a purchase.

Fast Charging Power Bank Sizes

Fast charging power banks were available in various sizes, typically measured in milliampere-hours (mAh) or watt-hours (Wh). The size of a power bank determines its capacity, which directly impacts the number of device charges it can provide.

Fast charging power banks can come in the following sizes:

1. Small power banks: These are usually in the range of 5,000mAh to 10,000mAh. They are compact and portable, capable of providing around 1-3 full charges for most smartphones.
2. Medium power banks: These typically range from 10,000mAh to 20,000mAh. They offer more charging capacity and can provide 3-5 full charges for smartphones and multiple charges for smaller devices like smartwatches or earbuds.
3. Large power banks: These are higher-capacity power banks with sizes ranging from 20,000mAh to 30,000mAh or even more. They can provide multiple charges for smartphones and tablets or a combination of charges for multiple devices.

It’s important to note that fast charging capabilities can vary among different power banks, and some may support various fast charging technologies like Qualcomm Quick Charge, Power Delivery (PD), or proprietary fast charging systems from specific brands.

Since technology evolves rapidly, there might be newer and larger capacity power banks available on the market beyond my last update. When considering a power bank, make sure to check the specifications to ensure it meets your charging needs and is compatible with your devices.

Power Bank Sizes for Tablets and iPads

Power banks come in various sizes and capacities, typically measured in milliampere-hours (mAh) or watt-hours (Wh). The suitable size of a power bank for a tablet or iPad depends on several factors, including the tablet’s battery capacity and your charging needs.

1. Check your Tablet or iPad’s Battery Capacity: Look up the battery capacity of your tablet or iPad. It is usually measured in mAh. For example, if your tablet has a 6000mAh battery, you’ll want a power bank with at least the same capacity, if not more, to get at least one full charge.
2. Desired Number of Charges: Decide how many charges you want from the power bank. For instance, if your tablet has a 6000mAh battery, and you want the power bank to provide two full charges, you’ll need a power bank with at least 12000mAh capacity.
3. Consider Efficiency: Keep in mind that power banks aren’t 100% efficient, and there will be some energy loss during the charging process. For USB power banks, the typical efficiency is around 70-90%. So, if you need to deliver 6000mAh to your tablet, you may need a power bank with a higher capacity to compensate for the efficiency loss.
4. Portability: Larger capacity power banks are often bulkier and heavier. If portability is essential to you, you might prefer a smaller capacity power bank that can still provide at least one full charge to your device.
5. Fast Charging: Some tablets and iPads support fast charging, which requires higher power output from the power bank. Check if your device supports fast charging and choose a power bank that can deliver the required output.
6. Multiple Devices: If you plan to charge other devices simultaneously or carry a single power bank for multiple devices, consider a higher capacity power bank.

Power Bank Size for GoPro and Action Cameras

The suitable power bank size for your GoPro or action camera depends on various factors, such as the camera’s battery capacity, the length of your outdoor activities, and whether you plan to charge other devices as well. Here are some steps to help you determine the right power bank size:

1. Check your Camera’s Battery Capacity: Look up the battery capacity of your GoPro or action camera. It is typically measured in milliampere-hours (mAh). For example, if your camera has a 1000mAh battery, you’ll want a power bank with at least the same capacity, if not more, to get at least one full charge.
2. Determine Your Charging Needs: Consider how many charges you need during your outdoor activities. If you plan to be away from a power source for an extended period, you might want a power bank with a larger capacity to ensure your camera remains powered.
3. Account for Efficiency: Keep in mind that power banks aren’t 100% efficient, and there will be some energy loss during the charging process. For USB power banks, the typical efficiency is around 70-90%. So, if you need to deliver 1000mAh to your camera, you may need a power bank with a higher capacity to compensate for the efficiency loss.
4. Portability: Larger capacity power banks tend to be bulkier and heavier. If portability is crucial for your outdoor activities, consider a smaller and lighter power bank that can still provide sufficient charges.
5. Consider Multiple Devices: If you plan to charge other devices besides your camera, such as a smartphone or a GPS device, take those charging needs into account when choosing the power bank size.

As a general guideline, for most GoPro and action cameras with battery capacities around 1000mAh to 1500mAh, a power bank with a capacity of 5000mAh to 10000mAh should be sufficient for several charges.

However, if you plan to be away from power sources for an extended period or have multiple devices to charge, opt for a higher capacity power bank.

Solar-Powered Power Bank Sizes

Solar-powered power banks come in various sizes, just like regular power banks, and their capacity is also measured in milliampere-hours (mAh) or watt-hours (Wh). The size of a solar-powered power bank depends on your charging needs, the devices you want to charge, and how much sunlight you expect to have access to during your outdoor activities.

Here are some factors to consider when choosing a solar-powered power bank size:

1. Charging Needs: Determine how many devices you want to charge and how many charges you’ll need throughout your outdoor activities. This will give you an estimate of the capacity you require.
2. Sunlight Availability: Consider the amount of sunlight you expect to have access to during your trips. If you’ll be in areas with consistent and strong sunlight, a smaller solar power bank might be sufficient. However, if you expect limited sunlight, you might need a larger solar power bank to store more energy in advance.
3. Device Compatibility: Ensure that the solar-powered power bank you choose has the appropriate charging ports and is compatible with the devices you want to charge.
4. Portability: Solar panels can add bulk and weight to the power bank, especially in larger capacity models. Balance the need for capacity with portability based on your specific outdoor activities.
5. Charging Speed: Solar charging is generally slower compared to traditional charging methods. If fast charging is a priority, you may need a larger capacity solar power bank to store enough energy for your devices.
6. Backup Charging: Some solar-powered power banks can also be charged via a regular USB input. Consider this feature if you want a backup charging option when solar charging is not feasible.

As a rough guideline, for most outdoor activities, a solar-powered power bank with a capacity between 10,000mAh to 20,000mAh should provide a good balance of charging capability and portability.

However, if you expect extended periods without access to traditional power sources or if you have multiple devices to charge, consider a larger capacity solar-powered power bank.

Keep in mind that solar charging is supplementary and might not be sufficient as the sole charging method, especially if sunlight is limited. It’s essential to charge the power bank fully before your trips and use solar charging as a way to top up the power bank’s energy when possible.

Always choose solar-powered power banks from reputable brands with efficient solar panels to maximize their charging capabilities and ensure a reliable power source during your outdoor adventures.

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Conclusion

This page covers what size power bank do I need. To determine the size of the power bank you need, consider factors such as your device’s battery capacity, the number of charges required, and the level of portability desired.

For most devices, a power bank with a capacity of 10,000mAh to 20,000mAh strikes a good balance between charging capability and portability. Always ensure compatibility and opt for reputable brands to ensure reliability.